The lawsuit alleges that truck operators are duping customers into believing they are hawking “the same Jewish deli foods” as the 125-year-old East Houston Street mainstay.

“Defendants’ blatant efforts to appropriate plaintiff’s business goodwill, name and mark have resulted in plaintiff being associated with food products and restaurant services over which the plaintiff has no control,” the lawsuit says.

Brooklyn-based TMA Trading Inc. is named as the operator of the mobile food units, adding its trucks and cart were rolled out in Midtown as well as Brooklyn last spring.

One of the owners of Katz & Dogz, who identified himself as Tarek, called the deli owners “pushy” and “not polite.” He declined to comment on the suit.

Among Katz & Dogz’s menu items is Reuben sandwich called a “Reuben Orgasm,” which the lawsuit says could be a reference to a famous scene in the popular 1989 movie “When Harry Met Sally” that was shot at Katz’s.

In the scene, actress Meg Ryan fakes an orgasm in the middle of a meal, prompting another diner to wisecrack, “I’ll have what she’s having!”

The food blog Midtown Lunch last September gave a Katz & Dogz truck a rave review and compared it to “a lite version of what you’d expect to find at a classic Jewish deli.”

The suit claims the Katz & Dogz owners previously owned Adelman’s Deli in Gravesend, Brooklyn, which closed last spring
in a rent dispute. Only one of the owners, Mohamed Salem, is named in the suit.

Marc Misthal, a lawyer for Katz’s Delicatessen, said they “made every effort” to resolve the matter without filing litigation, including offering to pay the defendants $7,000 to redo the exterior of their trucks.